Buoyancy
By the air moving over the top of the chimney causes the smoke from the fire to
What is rise up
An object in air has a weight of 9.8N on a spring scale in water it's weight is 7.8N on the spring scale because of this force
What is buoyant force
An object is dropped into a beaker containing a liquid. The object is suspended in the fluid showing this buoyancy.
What is neutral (Equal) buoyancy
Air above an airplane wing is moving faster than the air below an airplane wing. This causes the plane to
What is increase its elevation